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      1 /*	$NetBSD: i915_gem_gtt.h,v 1.11 2021/12/19 11:33:30 riastradh Exp $	*/
      2 
      3 /* SPDX-License-Identifier: MIT */
      4 /*
      5  * Copyright  2020 Intel Corporation
      6  */
      7 
      8 #ifndef __I915_GEM_GTT_H__
      9 #define __I915_GEM_GTT_H__
     10 
     11 #include <linux/io-mapping.h>
     12 #include <linux/types.h>
     13 
     14 #include <drm/drm_mm.h>
     15 
     16 #include "gt/intel_gtt.h"
     17 #include "i915_scatterlist.h"
     18 
     19 struct drm_i915_gem_object;
     20 struct i915_address_space;
     21 
     22 int __must_check i915_gem_gtt_prepare_pages(struct drm_i915_gem_object *obj,
     23 					    struct sg_table *pages);
     24 void i915_gem_gtt_finish_pages(struct drm_i915_gem_object *obj,
     25 			       struct sg_table *pages);
     26 
     27 int i915_gem_gtt_reserve(struct i915_address_space *vm,
     28 			 struct drm_mm_node *node,
     29 			 u64 size, u64 offset, unsigned long color,
     30 			 unsigned int flags);
     31 
     32 int i915_gem_gtt_insert(struct i915_address_space *vm,
     33 			struct drm_mm_node *node,
     34 			u64 size, u64 alignment, unsigned long color,
     35 			u64 start, u64 end, unsigned int flags);
     36 
     37 /* Flags used by pin/bind&friends. */
     38 #define PIN_NOEVICT		BIT_ULL(0)
     39 #define PIN_NOSEARCH		BIT_ULL(1)
     40 #define PIN_NONBLOCK		BIT_ULL(2)
     41 #define PIN_MAPPABLE		BIT_ULL(3)
     42 #define PIN_ZONE_4G		BIT_ULL(4)
     43 #define PIN_HIGH		BIT_ULL(5)
     44 #define PIN_OFFSET_BIAS		BIT_ULL(6)
     45 #define PIN_OFFSET_FIXED	BIT_ULL(7)
     46 
     47 #define PIN_UPDATE		BIT_ULL(9)
     48 #define PIN_GLOBAL		BIT_ULL(10) /* I915_VMA_GLOBAL_BIND */
     49 #define PIN_USER		BIT_ULL(11) /* I915_VMA_LOCAL_BIND */
     50 
     51 #define PIN_OFFSET_MASK		I915_GTT_PAGE_MASK
     52 
     53 #endif
     54